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| PR:000003212 | serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B | | |  | | |
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| PR:000003213 | serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform | | |  | | |
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| PR:000018792 | serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform, initiator methionine removed form | | |  | | |
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| PR:000048887 | serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform, initiator methionine removed form (human) | | |  | | |